Self-leveling adaptor



FIG. 1 is a perspective view showing top and side portions of our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a side cross-section view thereof taken along line 4—4 of FIG. 3; and,

FIG. 5 is a bottom plan view thereof. 

I claim the ornamental design for a self-leveling adaptor, as shown and described. 